Requesting aero mod ideas (pickup: dodge ram 2500 4x4)
I have an 06 dodge ram 2500 4x4 raised 2.5" in the front to be leveled and running 325/55R22 tires. My frontal area is around 38 sq. ft. per my calcs. Looking for ideas for aero mods. Here are my ideas so far: Will eventually be going to a smaller tire size to help lower frontal area some. Thinking of a grill block of some sort but it seems to me that having a somewhat flat surface on the front would raise drag? Maybe a lower front air dam to keep air from going under truck but unshure on looks of this and effectiveness. Will probly block off fog light holes and spaces in front bumper. Also thinking of folding my mirrors back an placing a small mirror on each. With my mirrors being probly 1-1.5 sq. ft. each I could cut this in less than half folded back helping to reduce frontal area some. Give me some pointers along with effectiveness of mod. Thanks.
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As far as individual modifications go, adding a properly designed aerodynamic cap will yield the biggest drag reduction: 20%
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If you're going to block the grille, do it progressively, and monitor temperature like a hawk. Also, you have to pay attention to the intercooler if you have one. Some of the other diesel drivers may pipe up. Quote:
[quote>Will probly block off fog light holes and spaces in front bumper. [/quote] Coudn't hurt. Quote:
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Cleaning up the bed is the aerodynamic big enchilada for pickups.
A tonneau is good. A sloped bed cover is better. Don't forget an air dam. |
There is a guy on the CumminsForum who posted his new front airdam pics yesterday. He put a 10" airdam on the front, below the front fender. Claims to have raised mileage between 3 and 4mpg. I have the same truck, 2004 quadcab 2500 longbed 4wd. I am thinking of doing a similar mod, but with different materials. I was thinking that I could build a spacer between the bumper and the little oem airdam, extending it down about 6 more inches. I would also be able to vent my homebrew cold air intake there. I don't think the ideas of warm or hot air intake work with a turbodiesel. Heat is the enemy of that engine.
Good Luck, Dave Quote:
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Mopar parallel heat-exchangers
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If you can do it without compromising safety, go for it. Rare are the mods that reduce both Cd and A.[/QUOTE] Be extra carefull blocking your Dodge.I believe the heat-exchangers are parallel ( side-by-side ) instead of serial as in most vehicles. Dr. Korff would say that your inlet,while only 1/6 the height of your exchangers,would still have to be full-width,and the duct would have to be as "deep" as the full height of the cores.And completely air-tight. |
Here is a link to the guy who just fabbed a airdam for his Dodge Cummins. 2-3 MPG increase - Dodge Cummins Diesel Forum
Enjoy, Dave |
I am going to try the "fastback" bed cover like big dave has on his truck since he made gains of around 3mpg with this mod. I will also be folding mirrors back for less frontal area and improved fe and less drag. Front lower air valence will come later.
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